I have 20 episodes which can fill up to a whole DVD-R. I tried to use NeroVision Express to make my dvd but it can only fill up 3 episodes because it seems to determine the space by time so i can only fit 3 episodes, no more. If you could help me in any way, that will be much appreciated.
If you want to burn the 20 files to one DVD then you need to use Nero Burning ROM and not express to burn as data. The result however will not be playback on regular standalones. For DVD video you have to convert which means the original filesizes don't matter and you will most likely fit less.
if your standalone dvd player is capable of playing divx/xvid or both then all you have to do is burn the files on a dvd as a 'data disc' not as a dvd video disc. you can make a data disc with nero express or burning rom it doesnt matter.
